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A deposit formed in a liquid extract of a vegetable substance by exposure to the air.

Made from, or by means of, water. An aqueous deposit. Dana. Aqueous extract, an extract obtained from a vegetable substance by steeping it in water. -- Aqueous humor (Anat.), one the humors of the eye; a limpid fluid, occupying the space between the crystalline lens and the cornea. (See Eye.) -- Aqueous rocks (Geol.),…

A carbohydrate, isomeric with cane sugar, contained in gum arabic, from which it is extracted as a white, amorphous substance.

A poisonous, white, crystallizable alkaloid, extracted from the Atropa belladonna, or deadly nightshade, and the Datura Stramonium, or thorn apple. It is remarkable for its power in dilating the pupil of the eye. Called also daturine.

of metals, i. e., mercury, which was formerly supposed to exist in all metals, and to be extractable from them.

e point that stands backward in an arrow, fishhook, etc., to prevent it from being easily extracted. Hence: Anything which stands out with a sharp point obliquely or crosswise to something else. "Having two barbs or points." Ascham.

A process of extracting gold or silver by treating the ore in a revolving barrel, or drum, with mercury, chlorine, cyanide solution, or other reagent.

A fermented extract of the roots and other parts of various plants, as spruce, ginger, sassafras, etc. Small beer, weak beer; (fig.) insignificant matters. "To suckle fools, and chronicle small beer." Shak.

undish or pear-shaped fruit, from the rind of which an essential oil of delicious odor is extracted, much prized as a perfume. Also, the fruit. (b) A variety of mint (Mentha aquatica, var. glabrata).

lly, and also occurring naturally in beetroot molasses and its residues, from which it is extracted as a white crystalline substance; -- called also lycine and oxyneurine. It has a sweetish taste.

The East Indian name of a virulent poison extracted from Aconitum ferox or other species of aconite: also, the plant itself.

Lineage; extraction; descent; sometimes, high birth; noble extraction. Elected without reference to birth, but solely for qualifications. Prescott.

Of mean extraction. [R.] Sir W. Scott.

ps are formed in miniature. Meat biscuit, an alimentary preparation consisting of matters extracted from meat by boiling, or of meat ground fine and combined with flour, so as to form biscuits.

A dark brown pigment extracted from the soot of wood.

n.), tale earth; calcined magnesia. -- Bitter principles (Chem.), a class of substances, extracted from vegetable products, having strong bitter taste but with no sharply defined chemical characteristics. -- Bitter salt, Epsom salts;; magnesium sulphate. -- Bitter vetch (Bot.), a name given to two European leguminou…

- called also animal charcoal. It is used as a decolorizing material in filtering sirups, extracts, etc., and as a black pigment. See Ivory black, under Black. -- Bone cave, a cave in which are found bones of extinct or recent animals, mingled sometimes with the works and bones of man. Am. Cyc. -- Bone dust, ground o…

A substance, C16H14O5, extracted from brazilwood as a yellow crystalline powder which is white when pure. It is colored intensely red by alkalies on exposure to the air, being oxidized to bra*sil"e*in, C16H12O5, to which brazilwood owes its dyeing properties.

A substance contained in both Brazil wood and Sapan wood, from which it is extracted as a yellow crystalline substance which is white when pure. It is colored intensely red by alkalies. [Written also brezilin.]

Descent; pedigree; extraction. [Obs.] Honest gentlemen, I know not your breeding. Shak. Close breeding, In and in breeding, breeding from a male and female from the same parentage. -- Cross breeding, breeding from a male and female of different lineage. -- Good breeding, politeness; genteel deportment.…